Car-wheel



(No Model.)

J. N. KAUFHOLZ.

GAE WHEEL.

No. 296,840. Patented Apr. 15, 1884.

V .EZ

/ ATEOENEYS WEENESSES f Em/ UNITED STATES PATENT EEICE.

JOHN N. KAUEHOLZ, OE CLEVELAND, OHIO.

CAR-WHEEL.

SPECIFICATION forming part of Letters Patent No. 296,840, dated April 15, 1884.

Application liled September 7, 1883. (No model.)

To @ZZ whom/,it may concern: y

. Be it known that I, JOHN N. KAUFHOLZ, of Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Car-"Wheels, and I do hereby declare the following to be a full, clear,

and exact description of theinvention, such asl will enable Others skilled in the art to which it pertains to make and use the same.

My invention relates to improvements in car-wheels; and it consists in certain features of construction and in-combination of parts hereinafter described, and pointed out in the claims.

In the drawings, Figure l is an elevation view ofthe back of my improved car-wheel. Fig. 2 is a cross-section of the same.

The wheel has two hubs, A and A', each provided with an outside fiange,and the thimble part of the former extending through and inclosed in the latter, as shown.

I3 is a thimble separating the disks C and C', aud surrounding and tting a portion of the hub A. Ihis thimble has three lugs or bosses, b, extending radially and equidistant from each other, and the disk C has holes c, respectively opposite the lugs, and through which the said lugs may be operated upon when it is necessary to take the wheel apart.

l) is the rim or tire of the wheel, and has an inside rib, d, that is beveled on each side and engages tongues onthe inside, respectively, oi' the disks C and Cf, as shown, and forming a doy-retail. This part of the device is held rmly together by bolts extending through the two disks and pressing them with great force against the rib d.

In constructing these wheels, first, the disk C and afterward the thimble B are placed in position on the hub A. Next, the rim D and thei disk b are brought in the position shown and bolted securely, after which the hub A is added. These two hubs are fitted in such a manner that it requires great power to force them together in their proper position, and for this purpose a hydrostatic press is used such as is usually employed to force car-wheels onto In this manner the respective their axles.

f flanges are forced against the disks, that in turn are pressed against the thimble B, so that the disks are held about as rmly as if they were integral with the hubs. The diameter ofthe said disks is such that it requires force to press them into their respective seats on the tire, and when in position support the tire as firmly as if the tire and disks were integral with each other; also, the bore of the disks is of such size that it requires force to press them home to their seats on the respective iianges.

There are some marked advantages in this mode of construction, among which are the following: First, the different parts may be made of different kinds of material, each kind adapted to its peculiar use. The rim maybe cast without straining it, and may be of hard metal, and if' it should crack or break the pieces would beheld iu their place by the said dovetail. The disks are conveniently made of Wrought plates of metal that secure lightness and great strength. The hubs are not liable to break, and may be made of suitable cast metal.

Vhat I claim isF l. The hubs A and A', so fitted as to require great pressure to bring them properly together, in combination with the thimble B, and adapted to support and iirnily hold the disks that support the rim of the wheel, substan.

tial] y as and for the purpose set forth.

2. The hubs A and AJ, in combination with the thimble B and the disks C and C', substantially as shown and described.

3l The combination, with the two-parthub and thimble B ofthe disks Cy G, secured to the two-part hub in the manner described, each disk being provided with an inwardly-proj ecting' lip, and the rimD, provided with the beveled rib d, all of the above parts combined as described.

In testimony whereof I sign this specification, in the presence of two witnesses, this 31st day of August, 1883.

JOHN N. KAUFHOLZ.

VVit-nesses:

CHAs. H. Donnie, GEO. W. KING. 

